79
11 Supplement
MINITRAC 31 • Foundation Fieldbus
41782-EN-211203
Protection class
I
Pollution degree
4
7)
Relative humidity
max. 100 %
Protection, depending on housing ver-
sion
IP66/IP67 (NEMA Type 4X)
8)
Overvoltage category
III
9)
11.2 Device communication Foundation Fieldbus
In the following, the necessary device-specific details are shown. You can find further information of
Foundation Fieldbus on www.fieldbus.com.
Overview
The following table gives you an overview of the instrument versions and the corresponding device
descriptions, the electrical characteristics of the bus system as well as the applied function blocks.
Revisions Data
DD-Revision
Rev_02
CFF-File
020101.cff
Device Revision
0201.ffo
0201.sym
Cff-Revision
xx xx 01
Device software revision
> 1.7.0
ITK (Interoperability Test Kit) Number
6.0.1
Electricial Characteristics
Physicial Layer Type
Low-power signaling, bus-pow-
ered, FISCO I.S.
Input Impedance
> 3000 Ohms between 7.8 KHz -
39 KHz
Unbalanced Capacitance
< 250 pF to ground from either in-
put terminal
Output Amplitude
0.8 V P-P
Electrical Connection
4 Wire
Polarity Insensitive
Yes
Max. Current Load
10 mA
Device minimum operating voltage
9 V
Transmitter Function Blocks
Resource Block (RB)
1
Transducer Block (TB)
1
Standard Block (AI)
3
Execution Time
30 ms
7)
Micro-environment in housing: pollution degree 2
8)
A suitable cable is required for maintaining the protection rating.
9)
Alternative: Overvoltage category II with operating height up to 5000 m
